Frame structure of baby carriage



FIG. 1 is a front view of a frame structure of baby carriage showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof,

FIG. 7 is a perspective view thereof,

FIG. 8 is a right side view thereof showing the state in which a backrest portion is reclined backward,

FIG. 9 is a right side view thereof showing the state in which the backrest portion is reclined backward and a handle bar is displaced to a face-to-face position; and,

FIG. 10 is a right side view thereof showing the state in which a baby carriage is folded. 

The ornamental design for a frame structure of baby carriage, as shown and described. 